Disaster Accident Reference Libraries

Page 9 of about 116 Articles
Campylobacter jejuni
2011-04-14 16:27:41

Campylobacter jejuni is a species of curved, helical shaped, non-spore forming, Gram-negative microaerophilic, bacteria commonly found in animal feces. It is one of the most common causes of human gastroenteritis in the world. This food poisoning can be severely debilitating but rarely life-threatening. It has also been linked to Guillain-Barre syndrome which generally develops two to three...

Rift Valley Fever
2011-02-23 20:29:04

Rift Valley Fever (RVF) is a viral zoonosis that causes fever. It is spread through infected mosquitoes. It was first reported in 1915 in Kenya were it infected livestock. Outbreaks occur across sub-Saharan Africa, and in the "˜77-"˜78 outbreak several million people were infected and thousands died during a violent epidemic. In 1998 the virus killed 400 Kenyans and in 2000 an outbreak...

Mumps Virus
2011-02-17 17:26:28

Mumps virus causes mumps which is a common childhood disease characterized by swelling of the parotid glands and other epithelial tissues causing high morbidity in some cases deafness. Infection is currently restricted to humans while the virus is transmitted by direct contact, droplet spread, or via contaminated objects. It is a vaccine preventable disease although significant outbreaks have...

Influenza A Virus
2011-02-17 15:02:05

Influenza A virus causes influenza in birds and some mammals. It is a genus of the Orthomyxoviridae family of viruses. Although the virus is uncommon several strains have been isolated from wild birds. Some can cause severe disease in domestic poultry and sometimes in humans. They are negative sense, single-stranded, segmented RNA viruses. Each subtype has mutated into a variety of strains with...

2011-01-11 10:27:42

Cypoviruses or CPV, are a genus of viruses in the Reoviridae family. The virions structure is similar to other reoviruses with a genome composed of 10 segments of double-stranded RNA. The virions are embedded in a protein matrix in order to form structures referred to as polyhedra or occlusion bodies. Cypoviruses have only been isolated from insects. They have more in common with the widely...

Richter magnitude scale
2010-11-15 18:30:29

The Richter scale assigns a single number to quantify the amount of seismic energy released by an earthquake. The scale uses a base-10 logarithm by calculating the logarithm of the combined horizontal amplitude of the largest displacement from zero on a particular type of seismometer. A earthquake measuring 5.0 on the Richter scale has a shaking amplitude 10 times larger than one that measures...

Cernan Eugene
2010-10-29 20:25:18

Eugene Cernan was a NASA astronaut and an engineer. He was born David Eugene "Gene" Andrew Cernan on March 14, 1934 in Chicago, Illinois. He grew up in a diverse environment and graduated from Proviso East High School in Maywood, Illinois. He continued his education in Indiana at Purdue University, where he earned his Bachelors of Science in Electrical Engineering. He was contracted into the...

Mercury arc Valve
2010-10-28 18:28:32

A mercury arc valve converts high-voltage or high-current alternating current into direct current. It is an electrical rectifier often used to provide power for industrial motors, electric railways, streetcars, and electric locomotives. Peter Cooper Hewitt, in 1902, invented the mercury arc rectifier. It was further developed by researchers throughout the 1920s and 1930s. Prior to...

Lightning Rod
2010-10-21 17:15:50

A lightning rod is a metal conductor mounted on the top of a building and connected through a wire to the ground to protect the building from lightning. The rod should conduct the electricity from a lightning strike down through the wire instead of passing through the building. The rod is just a single component in the lightning protections system along with rooftop conductors and multiple...

Gagarin Yuri
2010-10-12 15:00:57

Yuri Gagarin was a Soviet cosmonaut who became the first human in outer space and the first to orbit the Earth. He was born Yuri Alekseyevich Gagarin on March 9, 1934 in the village of Klushino near Gzhatsk. His parents worked on a collective farm, and like millions of people in the Soviet Union, his family suffered during Nazi occupation in World War II. As a child, Gagarin became interested...

Word of the Day
  • The offense of persistently instigating lawsuits, typically groundless ones.
  • An unlawful breach of duty on the part of a ship's master or crew resulting in injury to the ship's owner.
  • Sale or purchase of positions in church or state.
This word ultimately comes from the Old French word 'barater,' to cheat.